WO2024017208A1 - 氧气处理系统及其控制方法 - Google Patents

氧气处理系统及其控制方法 Download PDF

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Publication number
WO2024017208A1
WO2024017208A1 PCT/CN2023/107751 CN2023107751W WO2024017208A1 WO 2024017208 A1 WO2024017208 A1 WO 2024017208A1 CN 2023107751 W CN2023107751 W CN 2023107751W WO 2024017208 A1 WO2024017208 A1 WO 2024017208A1
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WO
WIPO (PCT)
Prior art keywords
liquid
oxygen treatment
treatment system
treatment device
oxygen
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PCT/CN2023/107751
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English (en)
French (fr)
Inventor
苗建林
朱小兵
李春阳
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
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Publication of WO2024017208A1 publication Critical patent/WO2024017208A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C25B15/023—Measuring, analysing or testing during electrolytic production
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/56—Testing of electric apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile

Definitions

  • the present invention relates to controlled atmosphere preservation technology, and in particular to an oxygen treatment system and a control method thereof.
  • Controlled atmosphere preservation technology is a technology that extends the storage life of food by adjusting the composition of ambient gases.
  • the oxygen treatment device can process oxygen through the electrochemical reaction of the electrode to create a low-oxygen preservation atmosphere or a high-oxygen preservation atmosphere. Since electrochemical reactions are usually carried out in electrolytes and gases are generated during the reaction, the gases generated need to be discharged to the external environment.
  • the electrolyte will evaporate due to heat, which may cause trace amounts of electrolyte to be carried in the gas emitted by the oxygen treatment device. Therefore, a rehydration device needs to be installed in the oxygen treatment system. And use the fluid replenishment device to replenish fluid to the oxygen treatment device.
  • the inventor realized that if the oxygen treatment system fails, it will not only affect the normal performance of the oxygen regulation function, but may also leak, causing the surrounding environment to be eroded by the electrolyte.
  • the object of the present invention is to provide an improved oxygen treatment system and a control method thereof, which can regularly monitor whether a failure occurs in the oxygen treatment system and promptly remind the user to take remedial measures when a failure occurs.
  • the present invention provides a control method of an oxygen treatment system.
  • the oxygen treatment system includes an oxygen treatment device for treating oxygen through an electrochemical reaction and a liquid replenishing device for replenishing liquid to the oxygen treatment device.
  • the control method includes:
  • step of obtaining the fluid shortage prompt signal of the fluid replenishment device includes:
  • the step of determining whether the oxygen treatment system fails based on the liquid shortage prompt signal includes:
  • the failure type of the oxygen treatment system includes liquid leakage failure
  • failure type of the oxygen treatment system also includes aging failure of the oxygen treatment device.
  • the step of determining the amount of fluid to be supplied by the fluid replenishment device to the oxygen treatment device based on the fluid shortage prompt signal includes:
  • the amount of liquid replenished by the liquid replenishing device to the oxygen treatment device is calculated.
  • step of checking the effective utilization rate of the liquid volume includes:
  • the effective utilization rate of the liquid volume is checked based on the working time of the oxygen treatment device.
  • the step of checking the effective utilization rate of the liquid volume according to the working time of the oxygen treatment device includes:
  • the effective utilization of the liquid amount is checked based on the amount of liquid loss caused by the electrochemical reaction.
  • the step of testing the effective utilization rate of the liquid volume based on the liquid loss caused by the electrochemical reaction includes:
  • the present invention also provides an oxygen treatment system, which includes an oxygen treatment device for treating oxygen through an electrochemical reaction and a liquid replenishing device for replenishing liquid to the oxygen treatment device, and further includes : a processor and a memory, a machine executable program is stored in the memory, and when the machine executable program is executed by the processor, it is used to implement the control method as described above.
  • the beneficial effects of the present invention are: the oxygen treatment system and its control method of the present invention, by obtaining the liquid shortage prompt signal of the liquid replenishment device, and judging whether the oxygen treatment system is faulty based on the liquid shortage prompt signal, can detect the liquid replenishment device every time the liquid replenishment device is short of liquid. Or when rehydration is required, the oxygen treatment system can be inspected once for malfunction, thereby enabling the oxygen treatment system to be inspected as it is used, and the inspection can trace the use process at each stage. Based on the solution of the present invention, whether a fault occurs in the oxygen treatment system can be regularly monitored, and the user can be promptly reminded to take remedial measures when a fault occurs.
  • the oxygen treatment system and its control method of the present invention can determine the oxygen content according to the numerical value of the effective utilization rate of the liquid amount by obtaining the amount of liquid replenished to the oxygen treatment device by the liquid replenishment device and testing the effective utilization rate of the liquid amount. Handle the type of system failure. Using the above method of the present invention, the fault type analysis capability of the oxygen treatment system can be improved to Assist users to take targeted remedial measures.
  • the oxygen treatment system and its control method of the present invention can not only monitor and provide early warning for the leakage problem of the oxygen treatment system, but also monitor and provide early warning for the aging problem of the oxygen treatment device.
  • the means of monitoring and early warning are more comprehensive.
  • the above method of the present invention can be directly applied to multiple existing oxygen treatment devices without the need to modify the existing oxygen treatment device.
  • the structure of the processing device has the advantage of wide application range.
  • Figure 1 is a schematic block diagram of an oxygen treatment system according to one embodiment of the present invention.
  • Figure 2 is a schematic structural diagram of an oxygen treatment system according to an embodiment of the present invention.
  • Figure 3 is a schematic structural diagram of a fluid replenishment device according to an embodiment of the present invention.
  • Figure 4 is a schematic diagram of a control method of an oxygen treatment system according to an embodiment of the present invention.
  • Figure 5 is a control flow chart of the oxygen treatment system according to one embodiment of the present invention.
  • the oxygen treatment system 50 and its control method according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 8 .
  • FIG. 1 is a schematic block diagram of an oxygen treatment system 50 according to one embodiment of the invention.
  • the oxygen treatment system 50 may generally include an oxygen treatment device 20 , a fluid replacement device 10 , a processor 110 and a memory 120 .
  • FIG. 2 is a schematic structural diagram of an oxygen treatment system 50 according to an embodiment of the present invention, in which the processor 110 and the memory 120 are omitted.
  • the oxygen treatment system 50 of this embodiment is used to be installed in a refrigerator to use the oxygen treatment device 20 to treat oxygen in the storage space of the refrigerator.
  • the oxygen treatment device 20 is used to process oxygen through electrochemical reactions, such as consuming oxygen and/or generating oxygen, thereby reducing the oxygen content of the space and/or increasing the oxygen content of the space.
  • the fluid replenishing device 10 is used to replenish fluid to the oxygen treatment device 20 .
  • Oxygen treatment device 20 may generally include a housing 210, an anode plate (not shown), and a cathode plate 220.
  • the cathode plate 220 is used to consume oxygen through electrochemical reaction under the action of electrolysis voltage.
  • the anode plate is used to provide reactants (eg, electrons) to the cathode plate 220 through an electrochemical reaction under the action of electrolysis voltage and generate oxygen.
  • oxygen in the air can undergo a reduction reaction at the cathode plate 220, namely: O2+2H2O+4e- ⁇ 4OH-.
  • the OH- generated by the cathode plate 220 can undergo an oxidation reaction at the anode plate and generate oxygen, namely: 4OH- ⁇ O2+2H2O+4e-.
  • the electrochemical reaction of the oxygen treatment device 20 will cause water loss in the electrolyte. Therefore, it is only necessary to replenish water to the oxygen treatment device 20 , and the liquid in the rehydration device 10 may be water.
  • the fluid replenishing device 10 can also replenish the oxygen treatment device 20 with an appropriate concentration of electrolyte.
  • An opening is provided on the side wall of the housing 210 , and the cathode plate 220 can be disposed at the opening and together with the housing 210 define an electrolytic chamber for containing electrolyte.
  • the anode plate may be arranged in the electrolytic chamber spaced apart from the cathode plate 220 .
  • the fluid replacement device 10 may generally include a case 410 .
  • Figure 3 is a schematic structural diagram of a fluid replenishment device 10 according to an embodiment of the present invention.
  • the interior of the box 410 defines a liquid storage space 411 and a gas collecting space 412 in which the gas path is connected and the liquid path is blocked.
  • the liquid storage space 411 is used to allow oxygen from the oxygen treatment device 20 to flow therethrough to achieve filtration.
  • the liquid storage space 411 is used to contain liquid, such as water or other solutions.
  • the type of liquid can be set according to the solubility characteristics of oxygen and the solubility characteristics of impurities contained in oxygen, as long as the impurities contained in oxygen can be dissolved in the liquid and the oxygen itself is hardly dissolved in the liquid.
  • a liquid outlet 413 is formed on the box 410 and communicates with the liquid storage space 411 to allow the liquid in the liquid storage space 411 to flow out of the liquid storage space 411 and flow into the electrolysis chamber of the oxygen treatment device 20 .
  • a liquid replenishment pipeline 510 may be connected between the liquid outlet 413 and the liquid replenishment port 212 described below. The liquid replenishment pipeline 510 is used to guide the liquid flowing out of the liquid storage space 411 to the electrolytic chamber.
  • the box 410 is also formed with a liquid injection port 416 communicating with the liquid storage space 411 to allow liquid from outside the box 410 to be injected into the liquid storage space 411 to replenish liquid into the liquid storage space 411 .
  • the highest point of the liquid injection port 416 is lower than the lowest point of the gas collection space 412, so that the gas collection space 412 is limited above the liquid storage space 411 without physical obstruction, and is blocked from the liquid path of the liquid storage space 411.
  • the gas collection space 412 is connected to the external environment of the box 410 to discharge the oxygen filtered by the liquid storage space 411 out of the box 410 .
  • the fact that the liquid storage space 411 and the gas collection space 412 are connected by air and the liquid path is blocked means that there is an air flow path between the liquid storage space 411 and the gas collection space 412, and gas exchange is possible.
  • the liquid storage space 411 and the gas collection space are not connected.
  • the liquid path between the spaces 412 is blocked, and the liquid in the liquid storage space 411 cannot enter the gas collecting space 412.
  • the gas collection space 412 is not used to hold liquid, but is only used to collect and discharge oxygen filtered by the liquid storage space 411 .
  • the box 410 may be provided with an air inlet 414 connected to the liquid storage space 411 and an air outlet 415 connected to the air collecting space 412.
  • a gas pipeline 310 may be connected between the air inlet 414 and the exhaust port 211 described below.
  • the gas pipeline 310 is used to guide the gas flowing out of the exhaust port 211 to the liquid storage space 411 .
  • the fluid replacement device 10 may further include an air filter tube 420 and an air outlet tube 430 .
  • the gas filter tube 420 is inserted into the gas collection space 412 from the air inlet 414 and extends into the liquid storage space 411 to guide the gas to the liquid storage space 411 so that soluble substances in the gas are dissolved in the liquid storage space 411 .
  • the air outlet pipe 430 is inserted into the air collection space 412 from the air outlet 415 and extends to above the lowest point of the air collection space 412 to guide the filtered gas out of the box 410 through it.
  • the fluid replenishing device 10 may further include an air blocking mechanism 440 that divides the liquid storage space 411 into a gas filtered area and a non-air filtered area in which the air path is blocked and the liquid path is communicated.
  • the air filter pipe 420 extends into the air filter area.
  • the air blocking mechanism 440 may be a partition that extends downward from the inner surface of the top wall of the box 410 to above the inner surface of the bottom wall of the box 410, and has a gap between it and the inner surface of the bottom wall of the box 410. This gap is used to connect the liquid paths between the air filter area and the non-air filter area.
  • Air resistance mechanism 440 It is used to block the gas path between the gas filter area and the non-filter gas area to prevent the gas flowing into the gas filter area from entering the non-gas filter area.
  • the liquid injection port 416 can be connected to the non-filtration area.
  • the housing 210 may be provided with an exhaust port 211 for exhausting oxygen generated by the electrochemical reaction of the anode plate.
  • the exhaust port 211 can be connected to the liquid storage space 411 through the gas pipeline 310 .
  • the casing 210 may also be provided with a replenishing port 212 connected to the electrolytic chamber.
  • the replenishing port 212 may be connected to the liquid outlet 416 to allow the liquid contained in the replenishing device 10 to flow into the electrolytic chamber of the casing 210 .
  • a liquid storage chamber connected to the electrolytic chamber may be formed on one side of the electrolytic chamber of the housing 210.
  • a communication port may be formed between the electrolytic chamber and the liquid storage chamber.
  • the liquid replenishing port 212 is connected to the liquid storage chamber to transport liquid to the liquid storage cavity, thereby indirectly replenishing liquid to the electrolytic chamber.
  • a liquid level switch may be provided in the liquid storage chamber to open and close the liquid path between the liquid replenishing port 212 and the liquid storage chamber according to the liquid level in the liquid storage chamber. In this way, the liquid volume in the oxygen treatment device 20 is in a dynamic equilibrium state. According to the amount of liquid delivered by the liquid replenishing device 10 to the oxygen treatment device 20 , the liquid consumption of the oxygen treatment device 20 can be determined indirectly.
  • the number of openings may be multiple, and a cathode plate 220 may be disposed at each opening, and each cathode plate 220 may be opposite to an anode plate.
  • Memory 120 and processor 110 may form part of the main control board of oxygen treatment system 50 .
  • the memory 120 and the processor 110 may be at least part of the main control board of the refrigerator.
  • the memory 120 stores a machine executable program 121.
  • the processor 110 may be a central processing unit (CPU), a digital processing unit (DSP), or the like.
  • the memory 120 is used to store programs executed by the processor 110 .
  • Memory 120 may be, but is not limited to, any medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer.
  • the memory 120 may also be a combination of various memories 120 . Since the machine executable program 121 implements each process of the following method embodiments when executed by the processor 110 and can achieve the same technical effect, in order to avoid duplication, the details are not repeated here.
  • FIG. 4 is a schematic diagram of a control method of the oxygen treatment system 50 according to an embodiment of the present invention.
  • the control method generally includes the following steps:
  • Step S402 Obtain the fluid shortage prompt signal of the fluid replenishment device 10.
  • the fluid shortage prompt signal is used to instruct the user to replenish fluid to the fluid replenishment device 10 .
  • a fluid shortage prompt signal may be sent to instruct the user to replenish fluid to the fluid replenishment device 10 .
  • a liquid shortage prompt signal is sent out, it means that the oxygen treatment system 50 completes a working stage.
  • fluid replenishment can be performed according to a preset fluid volume.
  • a liquid shortage prompt signal is sent to indicate that the oxygen treatment system 50 has completed a working stage.
  • Step S404 Determine whether the oxygen treatment system 50 has a fault based on the liquid shortage prompt signal.
  • the liquid usage of the oxygen treatment system 50 can be determined based on the time node when the liquid shortage prompt signal is issued, so as to determine whether the oxygen treatment system 50 is faulty based on the liquid usage.
  • Fluid shortage reminder letter Numbers can be preset in several different forms. For example, when the liquid level drop rate of the fluid replenishment device 10 exceeds a preset threshold, a short "beep beep" may be emitted as a liquid shortage prompt signal to remind the user that the oxygen treatment system 50 consumes fluid at a too fast rate and is malfunctioning. .
  • Step S406 if yes, output a fault prompt signal. That is, when it is determined that the oxygen treatment system 50 is faulty, a fault prompt signal is output to prompt the user and/or manufacturer for timely maintenance.
  • the fault prompt signal can be sent to a user terminal connected to the main control board of the oxygen treatment device 20 and/or to a designated fault handling site, but is not limited to this.
  • the form of the fault prompt signal may include but is not limited to graphics, sound or voice.
  • the oxygen processing system 50 By obtaining the fluid shortage prompt signal of the fluid replenishment device 10 and judging whether the oxygen processing system 50 has a fault based on the fluid shortage prompt signal, whether the oxygen processing system 50 has a fault can be checked every time the fluid replenishment device 10 is short of fluid or needs fluid replenishment, thereby The oxygen treatment system 50 can be inspected during use, and the inspection can trace the use process at each stage. Based on the solution of this embodiment, whether a fault occurs in the oxygen treatment system 50 can be regularly monitored, and the user can be promptly reminded to take remedial measures when a fault occurs.
  • the step of obtaining the fluid shortage prompt signal of the fluid replenishment device 10 includes: obtaining the fluid level of the fluid replenishment device 10, and determining whether the fluid level of the fluid replenishment device 10 reaches a preset safe fluid level. If it reaches, then Generate a fluid shortage prompt signal.
  • the preset safe liquid level may be the lowest liquid storage level of the fluid replenishment device 10 .
  • the fluid replenishment device 10 is provided with a liquid level monitoring device (not shown) for detecting the liquid level, such as a liquid level sensor, and the liquid level monitoring device may be disposed at the bottom of the liquid storage space 411 .
  • a liquid level monitoring device for detecting the liquid level
  • the liquid level monitoring device can send out a fluid shortage prompt signal to prompt the user to replenish fluid to the fluid replenishment device 10 .
  • the step of determining whether the oxygen treatment system 50 is faulty based on the lack of liquid prompt signal includes: determining the amount of liquid that the rehydration device 10 has previously replenished to the oxygen treatment device 20 based on the lack of liquid prompt signal, and checking the liquid amount.
  • the effective utilization rate of the liquid volume is used to determine whether the oxygen treatment system 50 is faulty.
  • the effective utilization rate of the liquid volume refers to the ratio between the expected liquid volume actually consumed by the oxygen treatment device 20 and the liquid volume that the liquid replenishment device 10 has previously replenished to the oxygen treatment device 20 .
  • the expected amount of liquid actually consumed by the oxygen treatment device 20 refers to the amount of liquid consumed by the exhaust process when the oxygen treatment device 20 performs an electrochemical reaction and/or the liquid loss caused by volatilization when the oxygen treatment device 20 does not perform an electrochemical reaction. Loss amount. For example, if the oxygen treatment system 50 leaks liquid, the total liquid volume actually consumed by the oxygen treatment device 20 includes the expected liquid volume actually consumed by the oxygen treatment device 20 and the leaked liquid volume. This will cause a deviation in the effective utilization rate of the liquid volume. . If the oxygen treatment device 20 is aged, the expected liquid volume consumed by the oxygen treatment device 20 will be low, which will lead to another form of deviation in the effective utilization rate of the liquid volume. Therefore, the effective utilization rate of the liquid volume can accurately reflect whether the oxygen treatment system 50 fails, and can also reflect the type of failure of the oxygen treatment system 50 .
  • the aging of the oxygen treatment device 20 may refer to the phenomenon when the electrical parameters of the electrochemical components of the oxygen treatment device 20 are abnormal. For example, when the resistance value of the electrochemical element of the oxygen treatment device 20 deviates from the normal value, that is, the oxygen treatment device 20 indicates aging.
  • the oxygen treatment device 20 When the oxygen treatment device 20 performs an electrochemical reaction, it can be energized according to a preset electrolysis voltage value to keep the rate of the electrochemical reaction as constant as possible.
  • the fault type of the oxygen treatment system 50 can be determined based on the numerical value of the effective utilization rate of the liquid amount.
  • the fault type analysis capability of the oxygen treatment system 50 can be improved to assist the user in taking targeted remedial measures.
  • the oxygen treatment system 50 By judging whether the oxygen treatment system 50 is faulty based on the effective utilization rate of the liquid volume, it has the advantages of simple sampling, simple analysis method, and high accuracy of the analysis results, and there is no need to set up an additional special fault monitoring mechanism in the oxygen treatment system 50 , which is beneficial to Simplify the means of determining whether the oxygen treatment system 50 is faulty, ensure the accuracy of the determination results, and reduce the manufacturing cost and operating cost of the system.
  • the above method of the present invention breaks through the existing technology. With the shackles of thought, not only can monitoring and early warning be carried out for the leakage problem of the oxygen treatment system 50, but also the aging problem of the oxygen treatment device 20 can be monitored and early warned, and the means of monitoring and early warning are more comprehensive. Since there is no need to directly sample the liquid state or the state of the electrochemical element of the oxygen treatment device 20 with a complex structure, the above method of the present invention can be directly applied to multiple existing oxygen treatment devices 20 without the need to modify the existing oxygen treatment device 20 .
  • the structure of the oxygen treatment device 20 has the advantage of wide application range.
  • the fault types of the oxygen treatment system 50 may be preset to multiple fault types, such as liquid leakage faults and/or aging faults, and so on.
  • the control method of the embodiment of the present disclosure can be applied to the judgment and early warning of multiple fault types of the oxygen treatment system 50 .
  • the failure type of the oxygen treatment system 50 includes a liquid leakage failure.
  • the step of determining whether a liquid leakage failure occurs in the oxygen treatment system 50 according to the effective utilization rate of the liquid volume includes: determining whether the effective utilization rate is less than a preset first ratio threshold, and if so, determining that a liquid leakage failure occurs in the oxygen treatment system 50 .
  • the effective utilization rate of the liquid volume is less than the preset first ratio threshold, it means that there is an unexpected loss in the liquid volume of the liquid replenishment device 10 that is forwarded to the oxygen treatment device 20 .
  • the expected amount of liquid consumed by the oxygen treatment device 20 includes the liquid loss consumed by the exhaust process when the oxygen treatment device 20 performs an electrochemical reaction and the liquid loss caused by volatilization when the oxygen treatment device 20 does not perform an electrochemical reaction.
  • the effective utilization rate of the liquid volume will be significantly less than 1.
  • the first ratio threshold can be preset to any value in the range of 0.9 to 1.
  • the type of failure of the oxygen treatment system 50 also includes an aging failure of the oxygen treatment device 20 .
  • the step of judging whether the oxygen treatment device 20 has an aging fault according to the effective utilization rate of the liquid volume includes: judging whether the effective utilization rate is greater than a preset second ratio threshold, and the second ratio threshold is greater than the first ratio threshold. If so, determining whether the oxygen treatment device 20 has an aging fault.
  • the processing device 20 has an aging fault.
  • the effective utilization rate of the liquid volume is greater than the preset second ratio threshold, it means that the expected liquid volume consumed by the oxygen treatment device 20 is greater than the actual liquid volume consumed by the oxygen treatment device 20 .
  • the expected liquid volume consumed by oxygen treatment device 20 includes oxygen
  • the amount of liquid consumed by the exhaust process when the gas treatment device 20 performs an electrochemical reaction and the amount of liquid loss caused by volatilization when the oxygen treatment device 20 does not perform an electrochemical reaction if the oxygen treatment device 20 ages, the oxygen treatment
  • the expected amount of liquid consumed by the exhaust process when the device 20 performs the electrochemical reaction is relatively large, which in turn causes the expected amount of liquid consumed by the oxygen treatment device 20 to be greater than the actual amount of liquid consumed by the oxygen treatment device 20 .
  • the second ratio threshold can be preset to any value in the range of 1 to 1.1.
  • the step of determining the amount of fluid that the fluid replenishment device 10 has replenished to the oxygen treatment device 20 based on the fluid shortage prompt signal includes: obtaining the highest fluid level when the fluid replenishment device 10 completed the previous fluid replenishment, and based on the fluid shortage prompt. The difference between the safe liquid level and the maximum liquid level corresponding to the signal is used to calculate the amount of liquid that the liquid replenishment device 10 can replenish to the oxygen treatment device 20 .
  • the step of checking the effective utilization rate of the liquid volume includes: obtaining the working time of the oxygen treatment device 20 after the liquid replenishment device 10 completes adding liquid, and checking the effective utilization of the liquid volume based on the working time of the oxygen treatment device 20 Utilization.
  • the oxygen treatment device 20 performs an electrochemical reaction, it can be energized according to a preset electrolysis voltage value to keep the rate of the electrochemical reaction unchanged.
  • the step of checking the effective utilization rate of the liquid volume according to the working time of the oxygen treatment device 20 includes: calculating the liquid loss caused by the electrochemical reaction according to the working time of the oxygen treatment device 20 , and according to the electrochemical reaction The resulting liquid loss tests the effective utilization of the liquid volume.
  • the working time of the oxygen treatment device 20 can reflect the amount of liquid consumed by the exhaust process when the oxygen treatment device 20 performs an electrochemical reaction.
  • the product of the working hours of the treatment device 20 can determine the amount of liquid consumed by the exhaust process when the oxygen treatment device 20 performs an electrochemical reaction, which is recorded as the amount of liquid loss caused by the electrochemical reaction, and then the amount of liquid consumed by the oxygen treatment device 20 can be determined.
  • the effective utilization rate is determined by the ratio between the amount of liquid consumed by the exhaust process during the electrochemical reaction and the amount of liquid replenished by the replenishing device 10 to the oxygen treatment device 20 .
  • the calculation process ignores the liquid loss due to volatilization when the oxygen treatment device 20 does not perform an electrochemical reaction. In this way, the calculation process can be simplified to a certain extent.
  • the liquid loss rate caused by the electrochemical reaction of the oxygen treatment device 20 refers to the amount of liquid consumed by the exhaust process during the electrochemical reaction of the oxygen treatment device 20 per unit time.
  • the liquid loss rate caused by the electrochemical reaction of the oxygen treatment device 20 can be tested based on multiple experiments and preset based on the test result values.
  • the step of testing the effective utilization of the liquid volume based on the liquid loss caused by the electrochemical reaction includes: obtaining the liquid loss caused by the non-electrochemical reaction of the oxygen treatment device 20 after the liquid replenishment device 10 completes the rehydration. amount, and calculate the sum of the liquid loss and the liquid loss, and calculate the ratio of the sum of the liquid loss and the liquid loss to the liquid volume as the effective utilization rate. Liquid loss due to non-electrochemical reactions is caused by factors such as evaporation.
  • the steps of obtaining the liquid loss caused by the non-electrochemical reaction of the oxygen treatment device 20 after the liquid replenishment device 10 completes the rehydration include: obtaining the liquid loss rate caused by the non-electrochemical reaction, and obtaining the oxygen treatment device 20 after the liquid replenishment device 10 completes
  • the duration of continuous fluid consumption after fluid replenishment is calculated as the product of the duration of continuous fluid consumption of the oxygen treatment device 20 after the fluid replenishment device 10 completes the fluid replenishment and the fluid loss rate, as the non-electrochemical value of the oxygen treatment device 20 after the fluid replenishment device 10 completes the fluid replenishment.
  • the amount of fluid lost due to the reaction includes: obtaining the liquid loss rate caused by the non-electrochemical reaction, and obtaining the oxygen treatment device 20 after the liquid replenishment device 10 completes
  • the duration of continuous fluid consumption after fluid replenishment is calculated as the product of the duration of continuous fluid consumption of the oxygen treatment device 20 after the fluid replenishment device 10 completes the fluid replenishment and the fluid loss rate, as the
  • the liquid loss rate caused by non-electrochemical reaction refers to the amount of liquid lost due to volatilization when the oxygen treatment device 20 does not perform an electrochemical reaction per unit time.
  • the liquid loss rate caused by non-electrochemical reactions can be tested based on multiple experiments and preset based on the test result values.
  • the liquid loss due to non-electrochemical reactions is always carried out and occurs throughout the time interval of replenishing fluid to the rehydration device 10. Therefore, by calculating the sum of the liquid loss amount and the liquid loss amount and the rehydration device 10 before The ratio between the liquid volumes replenished to the oxygen treatment device 20 and using this ratio as the effective utilization rate can improve the accuracy of the calculation result of the effective utilization rate.
  • the control method may further include: verifying whether the oxygen treatment system 50 is leaking. , if it is verified that there is liquid leakage, perform the steps of outputting a fault prompt signal. That is to say, this embodiment further adds a verification step, and only when the verification passes, the step of outputting the fault prompt signal is executed.
  • the steps of verifying whether the oxygen treatment system 50 is leaking include: determining that the oxygen treatment device 20 is in a shutdown state, determining that the liquid level of the replenishing device 10 reaches a preset target level, and calculating the non-electrochemical reaction of the oxygen treatment device 20 resulting in The theoretical value of the time interval for replenishing fluid is obtained, the real-time value of the time interval for replenishing fluid to the fluid replenishment device 10 is obtained, and it is determined whether the real-time value of the time interval is less than the theoretical value of the time interval. If so, it is verified as a leakage.
  • a preset amount of liquid can be replenished to the fluid replenishment device 10 so that the liquid level of the fluid replenishment device 10 reaches
  • the preset target liquid level is used to obtain the liquid loss rate caused by non-electrochemical reactions.
  • the theoretical value of the time interval is determined based on the ratio between the preset amount of liquid replenished to the liquid replenishment device 10 and the liquid loss rate.
  • the real-time value of the time interval for the fluid replenishment device 10 to replenish the oxygen treatment device 20 can be determined based on this. If the real-time value of the time interval is less than the time interval If the theoretical value is reached, the oxygen treatment system 50 can be verified to be leaking.
  • the oxygen treatment system 50 can achieve higher technical effects by further optimizing and configuring the above steps.
  • the oxygen treatment system 50 in this embodiment will be described below in conjunction with the introduction of the two optional execution processes of this embodiment.
  • the control method of the system 50 will be described in detail. This embodiment is only an example of the execution process. During specific implementation, the execution sequence and operating conditions of some steps can be modified according to specific implementation requirements.
  • FIG. 5 is a control flow diagram of the oxygen treatment system 50 according to one embodiment of the present invention.
  • the control process generally includes the following steps:
  • Step S502 Obtain the liquid level of the fluid replenishment device 10.
  • Step S504 Determine whether the liquid level of the fluid replenishment device 10 reaches a preset safe liquid level. If yes, step S506 is executed. If not, step S502 is executed.
  • Step S506 Generate a fluid shortage prompt signal.
  • Step S508 Obtain the highest liquid level when the fluid replenishment device 10 completed the previous fluid replenishment.
  • Step S510 Calculate the amount of fluid that the fluid replenishment device 10 needs to replenish to the oxygen treatment device 20 based on the difference between the safe fluid level corresponding to the fluid shortage prompt signal and the maximum fluid level.
  • Step S512 Obtain the operating time of the oxygen treatment device 20 after the fluid replenishment device 10 completes fluid replenishment.
  • Step S514 Calculate the liquid loss caused by the electrochemical reaction according to the working time of the oxygen treatment device 20.
  • Step S516, obtain the liquid loss amount of the oxygen treatment device 20 caused by the non-electrochemical reaction after the liquid replenishment device 10 completes the liquid replenishment, and calculate the sum of the liquid loss amount and the liquid loss amount.
  • Step S518 Calculate the liquid loss and the ratio between the sum of the liquid loss and the liquid volume as the effective utilization rate.
  • Step S520 Determine whether the effective utilization rate is less than a preset first ratio threshold. If yes, step S522 is executed. If not, step S524 is executed.
  • step S522 it is determined that a liquid leakage failure occurs in the oxygen treatment system 50 .
  • Step S524 Determine whether the effective utilization rate is greater than a preset second ratio threshold, and the second ratio threshold is greater than the first ratio threshold. If yes, step S526 is executed. If not, step S502 is executed.
  • Step S526 It is determined that the oxygen treatment device 20 has an aging fault.
  • Step S528 Output a fault prompt signal.
  • the oxygen treatment system 50 and its control method of the present invention obtain the fluid shortage prompt signal of the fluid replenishment device 10 and determine whether the oxygen treatment system 50 is faulty based on the fluid deficiency prompt signal.
  • Each time the fluid replenishment device 10 is short of fluid or needs fluid replenishment Check whether the oxygen treatment system 50 has a fault every time, thereby realizing the inspection of the oxygen treatment system 50 as it is used, and the inspection can trace the use process of each stage. Based on the solution of the present invention, whether a fault occurs in the oxygen treatment system 50 can be regularly monitored, and the user can be promptly reminded to take remedial measures when a fault occurs.

Abstract

一种氧气处理系统（50）及其控制方法，氧气处理系统（50）包括用于通过电化学反应处理氧气的氧气处理装置（20）以及用于向氧气处理装置（20）补液的补液装置（10）。控制方法包括：获取补液装置（10）的缺液提示信号；基于缺液提示信号判断氧气处理系统（50）是否出现故障；若是，则输出故障提示信号。如此，可规律性地监测氧气处理系统（50）是否出现故障，并在出现故障时及时提醒用户采取补救措施。

Description

氧气处理系统及其控制方法 技术领域
本发明涉及气调保鲜技术，特别是涉及氧气处理系统及其控制方法。
背景技术
气调保鲜技术是通过调节环境气体成分来延长食品贮藏寿命的技术。氧气处理装置可以通过电极的电化学反应来处理氧气，营造出低氧保鲜气氛或者高氧保鲜气氛。由于电化学反应通常在电解液中进行，且反应过程会产生气体，需要将产生的气体向外部环境排放。
在反应过程中，由于伴随着大量热量的产生，电解液会受热蒸发，这导致氧气处理装置所排放的气体中可能会携带有微量的电解液，因此，需要在氧气处理系统中设置补液装置，并利用补液装置向氧气处理装置补液。发明人认识到，若氧气处理系统发生故障，不但会影响氧气调节功能的正常发挥，还可能发生漏液进而导致周围环境遭受电解液的侵蚀。
本背景技术所公开的上述信息仅仅用于增加对本申请背景技术的理解，因此，其可能包括不构成本领域普通技术人员已知的现有技术。
发明内容
本发明的目的在于提供一种改进的氧气处理系统及其控制方法，其能够规律性地监测氧气处理系统是否出现故障，并在出现故障时及时提醒用户采取补救措施。
为实现上述目的，本发明提供了一种氧气处理系统的控制方法，所述氧气处理系统包括用于通过电化学反应处理氧气的氧气处理装置以及用于向所述氧气处理装置补液的补液装置，并且所述控制方法包括：
获取所述补液装置的缺液提示信号；
基于所述缺液提示信号判断所述氧气处理系统是否出现故障；
若是，则输出故障提示信号。
进一步地，获取所述补液装置的缺液提示信号的步骤包括：
获取所述补液装置的液位；
判断所述补液装置的液位是否达到预设的安全液位；
若达到，则生成所述缺液提示信号。
进一步地，基于所述缺液提示信号判断所述氧气处理系统是否出现故障的步骤包括：
基于所述缺液提示信号确定所述补液装置此前向所述氧气处理装置补液的液量，并检验所述液量的有效利用率；
根据所述液量的有效利用率判断所述氧气处理系统是否出现故障。
进一步地，所述氧气处理系统的故障类型包括漏液故障；且
根据所述液量的有效利用率判断所述氧气处理系统是否出现所述漏液故障的步骤包括：
判断所述有效利用率是否小于预设的第一比率阈值；
若是，则确定氧气处理系统出现所述漏液故障。
进一步地，所述氧气处理系统的故障类型还包括所述氧气处理装置的老化故障；且
根据所述液量的有效利用率判断所述氧气处理装置是否出现所述老化故障的步骤包括：
判断所述有效利用率是否大于预设的第二比率阈值，所述第二比率阈值大于所述第一比率阈值；
若是，则确定氧气处理装置出现所述老化故障。
进一步地，基于所述缺液提示信号确定所述补液装置此前向所述氧气处理装置补液的液量的步骤包括：
获取所述补液装置此前一次完成补液时的最高液位；
根据所述缺液提示信号所对应的安全液位以及所述最高液位之间的差值计算所述补液装置此前向所述氧气处理装置补液的液量。
进一步地，检验所述液量的有效利用率的步骤包括：
获取所述氧气处理装置在所述补液装置完成补液后的工作时长；
根据所述氧气处理装置的工作时长检验所述液量的有效利用率。
进一步地，根据所述氧气处理装置的工作时长检验所述液量的有效利用率的步骤包括：
根据所述氧气处理装置的工作时长计算所述电化学反应导致的液体损耗量；
根据所述电化学反应导致的液体损耗量检验所述液量的有效利用率。
进一步地，根据所述电化学反应导致的液体损耗量检验所述液量的有效利用率的步骤包括：
获取所述氧气处理装置在所述补液装置完成补液后的非电化学反应导致的液体流失量，并计算所述液体流失量和所述液体损耗量之间的总和；
计算所述液体流失量和所述液体损耗量之间的总和与所述液量之间的比值，作为所述有效利用率。
为实现上述目的，本发明还提供了一种氧气处理系统，所述氧气处理系统包括用于通过电化学反应处理氧气的氧气处理装置以及用于向所述氧气处理装置补液的补液装置，还包括：处理器以及存储器，所述存储器内存储有机器可执行程序，所述机器可执行程序被所述处理器执行时，用于实现根据如上所述的控制方法。
本发明的有益效果是：本发明的氧气处理系统及其控制方法，通过获取补液装置的缺液提示信号，并基于缺液提示信号判断氧气处理系统是否出现故障，可在补液装置每次缺液或需要补液时检验一次氧气处理系统是否出现故障，从而实现氧气处理系统的随用随检，且检验可追溯每一阶段的使用过程。基于本发明的方案，可规律性地监测氧气处理系统是否出现故障，并在出现故障时及时提醒用户采取补救措施。
进一步地，本发明的氧气处理系统及其控制方法，通过获取补液装置此前向氧气处理装置补液的液量，并检验液量的有效利用率，可根据液量的有效利用率的数值大小确定氧气处理系统的故障类型。采用本发明的上述方法，可提升氧气处理系统的故障类型分析能力，以 协助用户有针对性地采取补救措施。
更进一步地，本发明的氧气处理系统及其控制方法，不单能针对氧气处理系统的漏液问题进行监测预警，也能针对氧气处理装置的老化问题进行监测预警，监测预警的手段更具全面性。并且由于不需要直接针对结构复杂的氧气处理装置的液体状态或者电化学元件的状态进行数据取样，因此，本发明的上述方法可以直接应用于多个现有的氧气处理装置，无需改造现有氧气处理装置的结构，具备适用范围广的优点。
附图说明
图1是本发明一个实施例的氧气处理系统的示意性框图；
图2是本发明一个实施例的氧气处理系统的示意性结构图；
图3是本发明一个实施例的补液装置的示意性结构图；
图4是本发明一个实施例的氧气处理系统的控制方法的示意图；
图5是本发明一个实施例的氧气处理系统的控制流程图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面结合附图和具体实施例对本发明进行详细描述。
下面参照图1至图8来描述本发明实施例的氧气处理系统50及其控制方法。
本发明实施例首先提供了一种氧气处理系统50。图1是根据本发明一个实施例的氧气处理系统50的示意性框图。氧气处理系统50一般性地可包括氧气处理装置20、补液装置10、处理器110以及存储器120。图2是根据本发明一个实施例的氧气处理系统50的示意性结构图，图中隐去了处理器110以及存储器120。本实施例的氧气处理系统50用于安装在冰箱内，以利用氧气处理装置20处理冰箱的储物空间内的氧气。
其中，氧气处理装置20用于通过电化学反应处理氧气，例如消耗氧气和/或生成氧气，从而降低空间的氧气含量和/或提高空间的氧气含量。补液装置10用于向氧气处理装置20补液。
氧气处理装置20一般性地可包括壳体210、阳极板(未示出)和阴极板220。其中，阴极板220用于在电解电压的作用下通过电化学反应消耗氧气。阳极板用于在电解电压的作用下通过电化学反应向阴极板220提供反应物(例如，电子)且生成氧气。
在通电情况下，例如，空气中的氧气可以在阴极板220处发生还原反应，即：O2+2H2O+4e-→4OH-。阴极板220产生的OH-可以在阳极板处发生氧化反应，并生成氧气，即：4OH-→O2+2H2O+4e-。
本实施例中，氧气处理装置20的电化学反应会导致电解液中的水分损耗，因此，仅需要向氧气处理装置20补水即可，补液装置10内的液体可以为水。当然，在另一些实施例中，补液装置10也可以向氧气处理装置20补充合适浓度的电解液。
以上关于阳极板和阴极板220的电化学反应的举例仅仅是示意性的，在了解上述实施例 的基础上，本领域技术人员应当易于变换电化学反应的类型，或者针对适用于其他电化学反应类型的氧气处理装置20的结构进行拓展，这些变换和拓展均应落入本发明的保护范围。
壳体210的侧壁上开设有开口，阴极板220可以设置于开口处并与壳体210共同限定出用于盛装电解液的电解腔。阳极板可以与阴极板220相互间隔地设置于电解腔内。
补液装置10一般性地可包括箱体410。图3是根据本发明一个实施例的补液装置10的示意性结构图。
箱体410的内部限定出气路相通且液路阻断的储液空间411以及集气空间412。储液空间411用于使来自氧气处理装置20的氧气流经其中以实现过滤。储液空间411用于盛装液体，例如水、或者其他溶液。液体的种类可以根据氧气的溶解特性以及氧气所含杂质的溶解特性进行设置，只要使得氧气所含杂质能够溶解于液体而氧气本身几乎不会溶解于液体即可。箱体410上形成有连通储液空间411的出液口413，用于允许储液空间411内的液体经其流出储液空间411且流入氧气处理装置20的电解腔。例如，出液口413与下述补液口212之间可以连接有补液管路510，该补液管路510用于将流出储液空间411的液体导引至电解腔。
箱体410上还形成有连通储液空间411的注液口416，用于允许来自箱体410外部的液体经其注入储液空间411内，以向储液空间411补液。注液口416的最高点低于集气空间412的最低点，从而使得集气空间412无物理阻隔地限定在储液空间411的上方，且与储液空间411液路阻断。
集气空间412连通箱体410的外部环境，以将经储液空间411过滤后的氧气排出箱体410。储液空间411与集气空间412气路相通且液路阻断是指，储液空间411与集气空间412之间具有气流通路，且能够进行气体交换，但是，储液空间411与集气空间412之间的液路被阻断，储液空间411内的液体无法进入集气空间412。集气空间412并非用于盛装液体，仅用于收集并排放经储液空间411过滤后的氧气。
箱体410上可以开设有连通储液空间411的进气口414以及连通集气空间412的出气口415。进气口414与下述排气口211之间可以连接有输气管路310，该输气管路310用于将流出排气口211的气体导引至储液空间411。补液装置10还可以进一步地包括滤气管420和出气管430。
其中，滤气管420从进气口414插入集气空间412，并延伸至储液空间411内，以将气体导引至储液空间411，使得气体中的可溶性物质溶解于储液空间411。出气管430从出气口415插入集气空间412，并延伸至集气空间412的最低点上方，以将过滤后的气体经其导引出箱体410。
补液装置10还可以进一步地包括气阻机构440，该气阻机构440将储液空间411分隔为气路阻断且液路相通的滤气区和非滤气区。滤气管420伸入滤气区。该气阻机构440可以为隔板，其自箱体410的顶壁内表面向下延伸至箱体410的底壁内表面的上方，并与箱体410的底壁内表面之间具有间隙，该间隙用于使滤气区和非滤气区液路相通。气阻机构440 用于阻断滤气区和非滤气区之间的气路通道，以防止流入滤气区的气体进入非滤气区。注液口416可以连通非滤气区。
壳体210上可以开设有排气口211，用于排出阳极板的电化学反应所产生的氧气。该排气口211可以通过输气管路310连通储液空间411。壳体210上还可以开设有连通电解腔的补液口212，该补液口212可以与出注液口416相连通，用于允许补液装置10所盛装的液体流入壳体210的电解腔内。壳体210的电解腔的一侧可以形成有与电解腔连通的储液腔，例如，电解腔与储液腔之间可以形成有连通口。补液口212连通储液腔，以向储液腔输送液体，从而起到间接地向电解腔补液的目的。储液腔内可以设置有液位开关，用于根据储液腔内的液位通断补液口212与储液腔之间的液路。这样一来，氧气处理装置20内的液量处于动态平衡状态。根据补液装置10向氧气处理装置20输送的液量，可以间接地确定氧气处理装置20的耗液量。
开口的数量可以为多个，每个开口处分别可以设置有一个阴极板220，且每个阴极板220分别与一阳极板相对。
存储器120和处理器110可以形成氧气处理系统50的主控板的一部分。或者，存储器120和处理器110可以为冰箱的主控板的至少一部分。存储器120内存储有机器可执行程序121，机器可执行程序121被处理器110执行时用于实现以下任一实施例的氧气处理系统50的控制方法。处理器110可以是一个中央处理单元(CPU)，或者为数字处理单元(DSP)等等。存储器120用于存储处理器110执行的程序。存储器120可以是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何介质，但不限于此。存储器120也可以是各种存储器120的组合。由于机器可执行程序121被处理器110执行时实现下述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
图4是根据本发明一个实施例的氧气处理系统50的控制方法的示意图。该控制方法一般性地可包括如下步骤：
步骤S402，获取补液装置10的缺液提示信号。缺液提示信号用于指示用户向补液装置10补液。例如，当补液装置10内的液位达到最低值时，可以发出缺液提示信号，以指示用户向补液装置10补液。每发出一次缺液提示信号，即表示氧气处理系统50完成一个工作阶段。
例如，在每次向补液装置10补液时，可按照预设的液量进行补液。当氧气处理系统50消耗完所补充的液量时，即发出一次缺液提示信号，以表示氧气处理系统50完成一个工作阶段。
步骤S404，基于缺液提示信号判断氧气处理系统50是否出现故障。本实施例中，可基于发出缺液提示信号的时间节点确定氧气处理系统50的液量使用情况，从而根据液量使用情况判断氧气处理系统50是否出现故障。
又如，也可基于缺液提示信号的形式判断氧气处理系统50是否出现故障。缺液提示信 号可以预设有多个不同的形式。例如，当补液装置10的液位下降速率超过预设的阈值时，可以发出例如短促的“嘟嘟嘟”作为缺液提示信号，以提示用户氧气处理系统50的耗液速率过快，出现故障。
步骤S406，若是，则输出故障提示信号。也即，在确定氧气处理系统50出现故障的情况下，输出故障提示信号以提示用户和/或厂商及时维修。
例如，故障提示信号可以发送至与氧气处理装置20的主控板数据连接的用户终端，和/或发送至指定的故障处理站点，但不限于此。故障提示信号的形式可以包括但不限于图文、声音或者语音。
通过获取补液装置10的缺液提示信号，并基于缺液提示信号判断氧气处理系统50是否出现故障，可在补液装置10每次缺液或需要补液时检验一次氧气处理系统50是否出现故障，从而实现氧气处理系统50的随用随检，且检验可追溯每一阶段的使用过程。基于本实施例的方案，可规律性地监测氧气处理系统50是否出现故障，并在出现故障时及时提醒用户采取补救措施。
在一些可选的实施例中，获取补液装置10的缺液提示信号的步骤包括：获取补液装置10的液位，判断补液装置10的液位是否达到预设的安全液位，若达到，则生成缺液提示信号。预设的安全液位可为补液装置10的最低储液液位。
例如，补液装置10内设置有用于检测液位的液位监测器件(未示出)，例如液位传感器，该液位监测器件可以设置在储液空间411的底部。当补液装置10的液位降至安全液位时，液位监测器件可发出缺液提示信号，以提示用户向补液装置10补液。
在一些可选的实施例中，基于缺液提示信号判断氧气处理系统50是否出现故障的步骤包括：基于缺液提示信号确定补液装置10此前向氧气处理装置20补液的液量，并检验液量的有效利用率，根据液量的有效利用率判断氧气处理系统50是否出现故障。其中，液量的有效利用率是指氧气处理装置20实际消耗的预期液量与补液装置10此前向氧气处理装置20补液的液量之间的比值。
氧气处理装置20实际消耗的预期液量是指氧气处理装置20进行电化学反应时的排气过程所消耗的液体损耗量和/或氧气处理装置20未进行电化学反应时因挥发所导致的液体流失量。例如，若氧气处理系统50漏液，则氧气处理装置20实际消耗的总液量包括氧气处理装置20实际消耗的预期液量以及泄漏的液量，此时会导致液量的有效利用率产生偏差。若氧气处理装置20老化，则氧气处理装置20消耗的预期液量将会偏低，进而会导致液量的有效利用率产生另一形式的偏差。因此，液量的有效利用率可准确地反映氧气处理系统50是否出现故障，并且还可反映出氧气处理系统50的故障类型。
氧气处理装置20的老化可以指氧气处理装置20的电化学元件的电学参数出现异常时的现象。例如，当氧气处理装置20的电化学元件的电阻值偏离正常值时，即氧气处理装置20表明老化。
在氧气处理装置20进行电化学反应时，可以按照预设的电解电压值向其通电，使其电化学反应的速率尽量保持不变。
使用上述方法，通过获取补液装置10此前向氧气处理装置20补液的液量，并检验液量的有效利用率，可根据液量的有效利用率的数值大小确定氧气处理系统50的故障类型。采用本实施例的上述方法，可提升氧气处理系统50的故障类型分析能力，以协助用户有针对性地采取补救措施。
通过根据液量的有效利用率判断氧气处理系统50是否出现故障，具备取样简便、分析方法简单、分析结果准确性高等优点，且无需在氧气处理系统50内额外设置专门的故障监测机构，有利于简化氧气处理系统50是否出现故障的判定手段，且保证判定结果的准确性，降低系统的制造成本和运行成本。
与直接监测氧气处理装置20的电化学元件的状态变化或者监测氧气处理系统50的各处是否出现漏洞来判断氧气处理系统50是否出现故障的方案相比，本发明的上述方法突破了现有技术的思想桎梏，不单能针对氧气处理系统50的漏液问题进行监测预警，也能针对氧气处理装置20的老化问题进行监测预警，监测预警的手段更具全面性。由于不需要直接针对结构复杂的氧气处理装置20的液体状态或者电化学元件的状态进行数据取样，因此，本发明的上述方法可以直接应用于多个现有的氧气处理装置20，无需改造现有氧气处理装置20的结构，具备适用范围广的优点。
在一些示例中，氧气处理系统50的故障类型可以预设为多个，例如漏液故障和/或老化故障，等等。本公开实施例的控制方法可适用于氧气处理系统50的多个故障类型的判断和预警。
在一些可选的实施例中，氧气处理系统50的故障类型包括漏液故障。根据液量的有效利用率判断氧气处理系统50是否出现漏液故障的步骤包括：判断有效利用率是否小于预设的第一比率阈值，若是，则确定氧气处理系统50出现漏液故障。
当液量的有效利用率小于预设的第一比率阈值时，表示补液装置10此前向氧气处理装置20补液的液量中存在超出预期的损失。例如，当氧气处理装置20消耗的预期液量包括氧气处理装置20进行电化学反应时的排气过程所消耗的液体损耗量和氧气处理装置20未进行电化学反应时因挥发所导致的液体流失量时，若氧气处理系统50漏液，则液量的有效利用率会明显小于1。第一比率阈值可以预设为0.9～1范围内的任意值。
在一些进一步的示例中，氧气处理系统50的故障类型还包括氧气处理装置20的老化故障。且根据液量的有效利用率判断氧气处理装置20是否出现老化故障的步骤包括：判断有效利用率是否大于预设的第二比率阈值，第二比率阈值大于第一比率阈值，若是，则确定氧气处理装置20出现老化故障。
当液量的有效利用率大于预设的第二比率阈值时，表示氧气处理装置20消耗的预期液量大于氧气处理装置20消耗的实际液量。例如，当氧气处理装置20消耗的预期液量包括氧 气处理装置20进行电化学反应时的排气过程所消耗的液体损耗量和氧气处理装置20未进行电化学反应时因挥发所导致的液体流失量时，若氧气处理装置20老化，则氧气处理装置20进行电化学反应时的排气过程所消耗的预期液量偏大，进而导致氧气处理装置20消耗的预期液量大于氧气处理装置20消耗的实际液量。第二比率阈值可以预设为1～1.1范围内的任意值。
在一些可选的实施例中，基于缺液提示信号确定补液装置10此前向氧气处理装置20补液的液量的步骤包括：获取补液装置10此前一次完成补液时的最高液位，根据缺液提示信号所对应的安全液位以及最高液位之间的差值计算补液装置10此前向氧气处理装置20补液的液量。
至于根据液位差值计算液量的具体方法，本领域技术人员应当易于根据补液装置10的形状和结构进行选择，为不掩盖本公开的发明点，此处不作赘述。
在一些可选的实施例中，检验液量的有效利用率的步骤包括：获取氧气处理装置20在补液装置10完成加液后的工作时长，根据氧气处理装置20的工作时长检验液量的有效利用率。在氧气处理装置20进行电化学反应时，可以按照预设的电解电压值向其通电，使其电化学反应的速率保持不变。
在一些可选的实施例中，根据氧气处理装置20的工作时长检验液量的有效利用率的步骤包括：根据氧气处理装置20的工作时长计算电化学反应导致的液体损耗量，根据电化学反应导致的液体损耗量检验液量的有效利用率。
例如，本步骤中，氧气处理装置20的工作时长可反映氧气处理装置20进行电化学反应时的排气过程所消耗的液量，根据氧气处理装置20的电化学反应导致的液体损耗速率与氧气处理装置20的工作时长之间的乘积可确定氧气处理装置20进行电化学反应时的排气过程所消耗的液量，记为电化学反应导致的液体损耗量，进而可根据氧气处理装置20进行电化学反应时的排气过程所消耗的液量与补液装置10此前向氧气处理装置20补液的液量之间的比值确定有效利用率。在一些实施例中，计算过程忽略不计氧气处理装置20未进行电化学反应时因挥发所导致的液体流失量，这样一来，可在一定程度上简化计算过程。
氧气处理装置20的电化学反应导致的液体损耗速率是指氧气处理装置20单位时间内电化学反应时的排气过程所消耗的液量。氧气处理装置20的电化学反应导致的液体损耗速率可根据多次实验测试出来并根据测试结果值进行预先设置。
在一些可选的实施例中，根据电化学反应导致的液体损耗量检验液量的有效利用率的步骤包括：获取氧气处理装置20在补液装置10完成补液后的非电化学反应导致的液体流失量，并计算液体流失量和液体损耗量之间的总和，计算液体流失量和液体损耗量之间的总和与液量之间的比值，作为有效利用率。非电化学反应导致的液体流失量由例如蒸发等因素导致。
获取氧气处理装置20在补液装置10完成补液后的非电化学反应导致的液体流失量的步骤包括：获取非电化学反应导致的液体流失速率，获取氧气处理装置20在补液装置10完成 补液后的持续耗液时长，计算氧气处理装置20在补液装置10完成补液后的持续耗液时长与液体流失速率之间的乘积，作为氧气处理装置20在补液装置10完成补液后的非电化学反应导致的液体流失量。非电化学反应导致的液体流失速率是指，单位时间内氧气处理装置20未进行电化学反应时因挥发所导致的液体流失量。非电化学反应导致的液体流失速率可根据多次实验测试出来并根据测试结果值进行预先设置。
使用上述方法，由于非电化学反应导致的液体流失一直在进行，发生于向补液装置10补液的时间间隔的始终，因此，通过计算液体流失量和液体损耗量之间的总和与补液装置10此前向氧气处理装置20补液的液量之间的比值，并采用该比值作为有效利用率，可提高有效利用率的计算结果的准确性。
在一些可选的实施例中，在确定氧气处理系统50出现漏液故障的情况下，且在执行输出故障提示信号的步骤之前，控制方法还可以进一步地包括：验证氧气处理系统50是否漏液，若验证为漏液，则执行输出故障提示信号的步骤。也就是说，本实施例进一步增设了验证步骤，在验证通过的情况下，才执行输出故障提示信号的步骤。
其中，验证氧气处理系统50是否漏液的步骤包括：确定氧气处理装置20处于停机状态，并确定补液装置10的液位达到预设的目标液位，计算氧气处理装置20的非电化学反应导致的补液的时间间隔的理论值，获取向补液装置10补液的时间间隔的实时值，判断时间间隔的实时值是否小于时间间隔的理论值，若是，则验证为漏液。
例如，在获取到补液装置10的缺液提示信号且采用上述方法初步判定氧气处理系统50出现漏液故障时，可向补液装置10补充预设量值的液体，使补液装置10的液位达到预设的目标液位，获取非电化学反应导致的液体流失速率，根据向补液装置10所补充的液体的预设量值与液体流失速率之间的比值确定时间间隔的理论值，当液位监测器件再次检测到补液装置10的液位降至安全液位时，可基于此确定出补液装置10向氧气处理装置20补液的时间间隔的实时值，若该时间间隔的实时值小于时间间隔的理论值，则氧气处理系统50可验证为漏液。
使用上述方法，在初步判定氧气处理系统50出现漏液故障时，通过验证氧气处理系统50是否漏液，且在验证通过的情况下执行输出故障提示信号的步骤，有利于提高氧气处理系统50运行过程的可靠性，降低氧气处理系统50漏液的误判率。
在一些可选实施例中，可以通过对上述步骤的进一步优化和配置使得氧气处理系统50实现更高的技术效果，以下结合对本实施例的两个可选执行流程的介绍对本实施例的氧气处理系统50的控制方法进行详细说明，该实施例仅为对执行流程的举例说明，在具体实施时，可以根据具体实施需求，对部分步骤的执行顺序、运行条件进行修改。
图5是根据本发明一个实施例的氧气处理系统50的控制流程图。该控制流程一般性地可包括如下步骤：
步骤S502，获取补液装置10的液位。
步骤S504，判断补液装置10的液位是否达到预设的安全液位，若是，则执行步骤S506，若否，则执行步骤S502。
步骤S506，生成缺液提示信号。
步骤S508，获取补液装置10此前一次完成补液时的最高液位。
步骤S510，根据缺液提示信号所对应的安全液位以及最高液位之间的差值计算补液装置10此前向氧气处理装置20补液的液量。
步骤S512，获取氧气处理装置20在补液装置10完成补液后的工作时长。
步骤S514，根据氧气处理装置20的工作时长计算电化学反应导致的液体损耗量。
步骤S516，获取氧气处理装置20在补液装置10完成补液后的非电化学反应导致的液体流失量，并计算液体流失量和液体损耗量之间的总和。
步骤S518，计算液体流失量和液体损耗量之间的总和与液量之间的比值，作为有效利用率。
步骤S520，判断有效利用率是否小于预设的第一比率阈值，若是，则执行步骤S522，若否，则执行步骤S524。
步骤S522，确定氧气处理系统50出现漏液故障。
步骤S524，判断有效利用率是否大于预设的第二比率阈值，第二比率阈值大于第一比率阈值，若是，则执行步骤S526，若否，则执行步骤S502。
步骤S526，确定氧气处理装置20出现老化故障。
步骤S528，输出故障提示信号。
本发明的氧气处理系统50及其控制方法，通过获取补液装置10的缺液提示信号，并基于缺液提示信号判断氧气处理系统50是否出现故障，可在补液装置10每次缺液或需要补液时检验一次氧气处理系统50是否出现故障，从而实现氧气处理系统50的随用随检，且检验可追溯每一阶段的使用过程。基于本发明的方案，可规律性地监测氧气处理系统50是否出现故障，并在出现故障时及时提醒用户采取补救措施。
以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围。

Claims (10)

  1. 一种氧气处理系统的控制方法，所述氧气处理系统包括用于通过电化学反应处理氧气的氧气处理装置以及用于向所述氧气处理装置补液的补液装置，并且所述控制方法包括：
    获取所述补液装置的缺液提示信号；
    基于所述缺液提示信号判断所述氧气处理系统是否出现故障；
    若是，则输出故障提示信号。
  2. 根据权利要求1所述的控制方法，其特征在于，获取所述补液装置的缺液提示信号的步骤包括：
    获取所述补液装置的液位；
    判断所述补液装置的液位是否达到预设的安全液位；
    若达到，则生成所述缺液提示信号。
  3. 根据权利要求2所述的控制方法，其特征在于，基于所述缺液提示信号判断所述氧气处理系统是否出现故障的步骤包括：
    基于所述缺液提示信号确定所述补液装置此前向所述氧气处理装置补液的液量，并检验所述液量的有效利用率；
    根据所述液量的有效利用率判断所述氧气处理系统是否出现故障。
  4. 根据权利要求3所述的控制方法，其特征在于，所述氧气处理系统的故障类型包括漏液故障；且
    根据所述液量的有效利用率判断所述氧气处理系统是否出现所述漏液故障的步骤包括：
    判断所述有效利用率是否小于预设的第一比率阈值；
    若是，则确定氧气处理系统出现所述漏液故障。
  5. 根据权利要求4所述的控制方法，其特征在于，所述氧气处理系统的故障类型还包括所述氧气处理装置的老化故障；且
    根据所述液量的有效利用率判断所述氧气处理装置是否出现所述老化故障的步骤包括：
    判断所述有效利用率是否大于预设的第二比率阈值，所述第二比率阈值大于所述第一比率阈值；
    若是，则确定氧气处理装置出现所述老化故障。
  6. 根据权利要求3所述的控制方法，其特征在于，基于所述缺液提示信号确定所述补液装置此前向所述氧气处理装置补液的液量的步骤包括：
    获取所述补液装置此前一次完成补液时的最高液位；
    根据所述缺液提示信号所对应的安全液位以及所述最高液位之间的差值计算所述补液装置此前向所述氧气处理装置补液的液量。
  7. 根据权利要求6所述的控制方法，其特征在于，检验所述液量的有效利用率的步骤 包括：
    获取所述氧气处理装置在所述补液装置完成补液后的工作时长；
    根据所述氧气处理装置的工作时长检验所述液量的有效利用率。
  8. 根据权利要求7所述的控制方法，其特征在于，根据所述氧气处理装置的工作时长检验所述液量的有效利用率的步骤包括：
    根据所述氧气处理装置的工作时长计算所述电化学反应导致的液体损耗量；
    根据所述电化学反应导致的液体损耗量检验所述液量的有效利用率。
  9. 根据权利要求8所述的控制方法，其特征在于，根据所述电化学反应导致的液体损耗量检验所述液量的有效利用率的步骤包括：
    获取所述氧气处理装置在所述补液装置完成补液后的非电化学反应导致的液体流失量，并计算所述液体流失量和所述液体损耗量之间的总和；
    计算所述液体流失量和所述液体损耗量之间的总和与所述液量之间的比值，作为所述有效利用率。
  10. 一种氧气处理系统，所述氧气处理系统包括用于通过电化学反应处理氧气的氧气处理装置以及用于向所述氧气处理装置补液的补液装置，还包括：
    处理器以及存储器，所述存储器内存储有机器可执行程序，所述机器可执行程序被所述处理器执行时，用于实现根据权利要求1-9中任一项所述的控制方法。
PCT/CN2023/107751 2022-07-18 2023-07-17 氧气处理系统及其控制方法 WO2024017208A1 (zh)

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